Quark confinement , topological susceptibility and all that in 4 dimensional gluodynamics

Abstract

We discuss a few tightly connected problems, such as the $U(1)$ problem, confinement, the $\theta$ -dependence within a framework of the dynamical toron approach. We calculate two fundamental characteristics of the theory: the vacuum expectation value (vev) of the Wilson loop and the topological susceptibility. The analogy with well known 2+1 dimensional QED which exhibits confinement phenomenon is also discussed.

14 pages, CERN-TH 6564/92

References in corpus (1)

• Once more on $\theta$-vacua in $2+1$ dimensional QED and 3+1 dimensional gluodynamics

Cited by in corpus (2)

• Fractons in Twisted Multiflavor Schwinger Model
• Singular defects with fractional topological charge\\ in $\sigma$ models and gauge theories